My Laptop is Presario B1971TU, when i bought it, it is using window vista.I am feel uncomfortable to use it, so i format it to Window XP.But i cant get its modem driver,Bluetooth and other driver, and i try to search at HP website, it only provide for VISTA user.for XP was no.SO i hope anyone can help!thanks a lot

while you in device manager note down all the drivers you need and i will see what i can find for you.
check the display as well if its listed as standard VGA that will need a driver and i think i know where to get that one for your laptop.

sound is straight forward as its realtek.

once i know what i am looking for i will give you a list of drivers i think may work.